JavaScript closest
When it comes to finding relationships between elements, we traditionally think of a top-down approach. We can thank CSS and querySelector/querySelectorAll for that relationship in selectors. What if we want to find an element's parent based on selector?
To look up the element tree and find a parent by selector, you can use HTMLElement's closest method:
// Our sample element is an "a" tag that matches ul > li > a
const link = document.querySelector('li a');
const list = a.closest('ul');
closest looks up the ancestor chain to find a matching parent element -- the opposite of traditional CSS selectors. You can provide closest a simple or complex selector to look upward for!
![Create Namespaced Classes with MooTools]()
MooTools has always gotten a bit of grief for not inherently using and standardizing namespaced-based JavaScript classes like the Dojo Toolkit does. Many developers create their classes as globals which is generally frowned up. I mostly disagree with that stance, but each to their own. In any event...
![Being a Dev Dad]()
I get asked loads of questions every day but I'm always surprised that they're rarely questions about code or even tech -- many of the questions I get are more about non-dev stuff like what my office is like, what software I use, and oftentimes...
![Flashy FAQs Using MooTools Sliders]()
I often qualify a great website by one that pay attention to detail and makes all of the "little things" seem as though much time was spent on them. Let's face it -- FAQs are as boring as they come. That is, until you...
![Fixing sIFR Printing with CSS and MooTools]()
While I'm not a huge sIFR advocate I can understand its allure. A customer recently asked us to implement sIFR on their website but I ran into a problem: the sIFR headings wouldn't print because they were Flash objects. Here's how to fix...
